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NavSource Online: Submarine Photo Archive

O-12 (SS-73)

O-11 Class Submarine: Laid down, 6 March 1916, at Lake Torpedo Boat Co., Bridgeport, CT.; Launched, 29 September 1917; Commissioned, USS O-12, 19 October 1918, at New York; Designated (SS-73), 17 July 1920; Decommissioned, 17 June 1924, at Philadelphia, PA.; Laid up in the Atlantic Reserve Fleet, Philadelphia; Struck from the Naval Register, 29 May 1930; Transferred to USSB for conversion for Arctic exploration, renamed Nautilus; Final Disposition, scuttled, 20 November 1931 in Norwegian waters.

Specifications: Displacement, surfaced: 491 t., submerged: 566 t.; Length 175'; Beam 16' 7"; Draft 13' 11"; Speed, surfaced 14 kts, submerged 11 kts; Operational Depth Limit 200 ft; Complement 2 Officers 27 Enlisted; Armament, four 18" torpedo tubes, eight torpedoes, one 3"/23 deck gun; Propulsion, diesel-electric, Busch Sulzer Brothers Diesel Engine Co., diesels, 1,000 hp, Fuel Capacity, 18,588 gal.; Diehl Manufacture Co. electric motors, 800 hp, Battery Cells 120, single propeller.
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O-12 135k Simon Lake's O-12 (SS-73) retained his trademark stern and amidships planes (shown folded down in the outboard view). Note the seperate flooding ports in the watertight superstructure. Drawing by Jim Christley, text courtesy of U.S. Submarines Through 1945, An Illustrated Design History by Norman Friedman. Naval Institute Press.
N-4 62k N-4 (SS-56) outboard with O-12 (SS-73) inboard, at Lake Torpedo Boat Co., Bridgeport, CT., January 16, 1917.
US Navy photo # 19-N-871B, from the National Archives and Records Administration (NARA), courtesy of Daniel Dunham.
N-5, 4, & O-12 110k N-4 (SS-56), N-5 (SS-57), & O-12 (SS-73) tied up to dock at Lake Torpedo Boat Co., Bridgeport, CT., April 1, 1918.
US Navy photo # 19-N-884, from the National Archives and Records Administration (NARA), courtesy of Daniel Dunham.
O-11 through O-16 68k From inboard to outboard:O-11 (SS-72) , O-13 (SS-74) , O-14 (SS-75) , O-15 (SS-76) , O-16 (SS-77) , and O-12 (SS-73) , at the Washington D.C. Navy Yard, circa 1918-24.
US Navy photo # 80-G-1024950, from the National Archives and Records Administration (NARA), courtesy of Daniel Dunham.
O-12 110k Starboard side view of the O-12 (SS-73), circa 1918-24. USN photo courtesy of ussubvetsofwwii.org.
Lake Boats 122k Lake boats show their distinctive sterns at Philadelphia Navy Yard in 1919: O-boats, inboard O-12 (SS-73), outboard O-14 (SS-75), middle boat, G-1(SS-19½) and two other unidentified boats. After WW I the U.S. Navy standardized on Lake's flat stern, whose buoyancy kept the propellers and diving planes down in the water.
Photo & text courtesy of U.S. Submarines Through 1945, An Illustrated Design History by Norman Friedman.Naval Institute Press.
O-12 224k O-12 (SS-73) was discarded in 1930 to be rebuilt by Lake & Danenhower Inc., of Bridgeport CT., for the Wilkins Artic expedition. Lake had long thought about submarine operations under ice; in 1903, he built a trestle atop his Protector and deliberatley operated her in iced waters. The Nautilus conversion, shown here, was far more sophisticated. Drawing by Jim Christley, text courtesy of U.S. Submarines Through 1945, An Illustrated Design History by Norman Friedman. Naval Institute Press.
O-12 16k ex O-12 (SS-73), in service as Nautilus on the Wilkins-Ellsworth Arctic Expedition in 1931. US Navy Arctic Laboratory
O-12 18k ex O-12 (SS-73), in service as Nautilus on the Wilkins-Ellsworth Arctic Expedition in 1931. US Navy Arctic Laboratory
O-12 16k ex O-12 (SS-73), port bow view as Nautilus on the Wilkins-Ellsworth Arctic Expedition in 1931. Courtesy of Michael Mohl from the "Illustrated Directory of Submarines of the World", pg. 119, by David Miller.
View the O-12 (SS-73)
DANFS history entry located on the Haze Gray & Underway Web Site.
Crew Contact And Reunion Information
Not Applicable to this Vessel
Additional Resources and Web Sites of Interest
Through the Looking Glass, a Historic Look at Submarines
American Philosophical Society, Nautilus (Submarine) Photograph Collection 1931
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